cat <<EOF | sudo tee "/usr/lib/systemd/system/containerd.service" >/dev/null
# Copyright The containerd Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd

Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=infinity
# Comment TasksMax if your systemd version does not supports it.
# Only systemd 226 and above support this version.
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target
EOF


cat <<EOF | sudo tee "/usr/lib/systemd/system/docker.socket" >/dev/null
[Unit]
Description=Docker Socket for the API

[Socket]
# If /var/run is not implemented as a symlink to /run, you may need to
# specify ListenStream=/var/run/docker.sock instead.
ListenStream=/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target
EOF


cat <<EOF | sudo tee "/usr/lib/systemd/system/docker.service" >/dev/null
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target docker.socket firewalld.service containerd.service time-set.target
Wants=network-online.target containerd.service
Requires=docker.socket

[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock -H tcp://0.0.0.0:2375
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutStartSec=0
RestartSec=2
Restart=always

# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229.
# Both the old, and new location are accepted by systemd 229 and up, so using the old location
# to make them work for either version of systemd.
StartLimitBurst=3

# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230.
# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make
# this option work for either version of systemd.
StartLimitInterval=60s

# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
# Older systemd versions default to a LimitNOFILE of 1024:1024, which is insufficient for many
# applications including dockerd itself and will be inherited. Raise the hard limit, while
# preserving the soft limit for select(2).
LimitNOFILE=1024:524288

# Comment TasksMax if your systemd version does not support it.
# Only systemd 226 and above support this option.
TasksMax=infinity

# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes

# kill only the docker process, not all processes in the cgroup
KillMode=process
OOMScoreAdjust=-500

[Install]
WantedBy=multi-user.target
EOF

sudo mkdir -p /etc/docker
cat <<EOF | sudo tee /etc/docker/daemon.json 1>/dev/null
{
     "registry-mirrors": ["https://docker.1ms.run"],
     "exec-opts":["native.cgroupdriver=systemd"]
}
EOF

sudo groupadd docker
cd /tmp \
&& sudo curl -kso docker-26.1.3.tgz https://mirrors.aliyun.com/docker-ce/linux/static/stable/x86_64/docker-26.1.3.tgz \
&& sudo curl -kso docker-rootless-extras-26.1.3.tgz https://mirrors.aliyun.com/docker-ce/linux/static/stable/x86_64/docker-rootless-extras-26.1.3.tgz \
&& sudo tar -zxf docker-26.1.3.tgz \
&& sudo tar -zxf docker-rootless-extras-26.1.3.tgz \
&& sudo chown -R root:root /tmp/docker-rootless-extras \
&& sudo chown -R root:root /tmp/docker \
&& sudo chown -R root:root /usr/lib/systemd/system/docker.service \
&& sudo chown -R root:root /usr/lib/systemd/system/docker.socket \
&& sudo chown -R root:root /usr/lib/systemd/system/containerd.service \
&& sudo chmod -R +x /tmp/docker/* /tmp/docker-rootless-extras/* \
&& sudo cp -r /tmp/docker/* /tmp/docker-rootless-extras/* /usr/bin/ \
&& sudo systemctl daemon-reload \
&& sudo systemctl enable --now docker.service \
&& sudo rm -rf /tmp/docker*
&& sudo usermod -aG docker ${USER}
&& sudo systemctl daemon-reload
&& sudo systemctl restart docker